Two U.S. military supported studies find bright lights can improve alertness, reduce post-traumatic stress

A series of brief flashes of bright light is all it takes to improve alertness at night, as reported in a research abstract (#0257) presented Monday at SLEEP 2010.Test subjects were wakened two hours after their typical bedtimes, brought into a dark room and were exposed to a two-millisecond light pulse once a minute for an hour.Researchers at Stanford University noted a significant improvement